Home / 20,081.97-30,099.06-15,135.30

Finding the Fourth Proportional to 20,081.97, 30,099.06 and 15,135.30

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Solution

The fourth proportional to 20,081.97, 30,099.06 and 15,135.30 is: 22,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.97 : 30,099.06 = 15,135.30 : x
  2. Step 2: Convert to fraction form
    20,081.97/30,099.06 = 15,135.30/x
  3. Step 3: Cross multiply
    20,081.97x = 30,099.06 × 15,135.30
  4. Step 4: Simplify right side
    20,081.97x = 455,558,302.82
  5. Step 5: Solve for x
    x = 455,558,302.82/20,081.97
  6. Step 6: Final answer
    x = 22,684.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.